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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Characteristics of Polymer Light Emitting Diodes with the LiF Anode Interfacial Layer
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Characteristics of Polymer Light Emitting Diodes with the LiF Anode Interfacial Layer

机译：具有LiF阳极界面层的聚合物发光二极管的特性

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摘要

Electrical and electroluminescent characteristics of poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene) (MEH-PPV)-based polymer light emitting diodes (PLEDs) with the LiF anode interfacial layer were investigated. Current-voltage measurement and impedance analysis showed that LiF insertion affected the electrical properties of PLEDs notably. The maximum luminance efficiency of the PLED device with a LiF anode interfacial layer of 1-nm-thick was 3.0 lm/W, which is higher than 1.97 lm/W of the PLED device without a LiF layer. By inserting LiF as the anode interfacial layer, excess injection of holes from indium tin oxide anode can be reduced and hence the balance between electrons and holes can be increased in the emitting layer to improve device efficiency.
机译：研究了具有LiF阳极界面层的聚（2-甲氧基-5-（2'-乙基己基氧基）-1,4-亚苯基亚乙烯基）（MEH-PPV）基聚合物发光二极管（PLED）的电和电致发光特性。电流电压测量和阻抗分析表明，LiF的插入会显着影响PLED的电性能。具有1nm厚的LiF阳极界面层的PLED器件的最大发光效率为3.0 lm / W，高于没有LiF层的PLED器件的1.97 lm / W。通过插入LiF作为阳极界面层，可以减少来自铟锡氧化物阳极的空穴的过量注入，因此可以增加发射层中电子与空穴之间的平衡，从而提高器件效率。

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